1. Geochemistry of ground water in mine drainage problems;Barnes;U.S. Geol. Surv., Prof. Pap.,1964
2. Field investigation of minewaters in the northern Anthracite Field, Pennsylvania;Barnes;U.S. Geol. Surv., Prof. Pap.,1964
3. Experiences with acid minewater drainage in tri-state field;Bilharz;Am. Inst. Min. Met. Eng., Cl. A Min. Technol., Tech. Publ.,1947
4. Acid mine drainage, Part VI: Control of oxidation;Braley;Mechanization,1954
5. Hydrological investigation of the Magnesian Limestone of southeast Durham, England;Cairney;J. Hydrol.,1972